July weather forecastMcCullom Lake, IL
July
Weather in July
July, the same as June, is a moderately hot summer month in McCullom Lake, Illinois, with an average temperature varying between 79.7°F (26.5°C) and 63.1°F (17.3°C).Temperature
The warmest period tends to be July, when average temperatures fluctuate between a high of 79.7°F (26.5°C) and a low of 63.1°F (17.3°C).Humidity
In McCullom Lake, the average relative humidity in July is 83%.Rainfall
In McCullom Lake, in July, during 18.3 rainfall days, 2.87" (73mm) of precipitation is typically accumulated. In McCullom Lake, during the entire year, the rain falls for 152.4 days and collects up to 28.07" (713mm) of precipitation.Snowfall
June through September are months without snowfall in McCullom Lake, Illinois.Daylight
The average length of the day in July is 14h and 55min.On the first day of the month, sunrise is at 5:20 am and sunset at 8:33 pm. On the last day of July, in McCullom Lake, sunrise is at 5:45 am and sunset at 8:13 pm CDT.
Sunshine
The months with the most sunshine in McCullom Lake, Illinois, are July and August, with an average of 10h of sunshine.UV index
In McCullom Lake, Illinois, the average daily maximum UV index in July is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 5 in July converts into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
McCullom Lake, IL
- Average high temperature in July: 79.7°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (26.6°F).
- Average low temperature in July: 63.1°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure in July
McCullom Lake, IL
- Average pressure in July: 29.97"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in July
McCullom Lake, IL
- Average wind speed in July: 6.4mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in July
McCullom Lake, IL
- Average humidity in July: 83%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (76%).
Average rainfall in July
McCullom Lake, IL
- Average rainfall in July: 2.87"
The wettest month (with the highest rainfall) is June (3.58").
The driest month (with the least rainfall) is December (1.34").
Average rainfall days in July
McCullom Lake, IL
- Average rainfall days in July: 18.3 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in July
McCullom Lake, IL
- Average snowfall in July: 0"
The month with the highest snowfall is January (5.16").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
McCullom Lake, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
McCullom Lake, IL
- Average daylight in July: 14h and 54min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in July: 10h and 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in July
McCullom Lake, IL
- Average sunshine days in July: 10.9 days
The month with the most sunshine days is November (16 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in July
McCullom Lake, IL
- Average UV index in July: 5
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in July
McCullom Lake, IL
- Average cloud cover in July: 32
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in July
McCullom Lake, IL
- Average visibility in July: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).





